杨树短周期纤维板工业用材林定向培育研究

Study on Oriented Cultivation of Industrial Timber for Short-period Fiberboard of Poplar

围绕杨树短周期纤维板工业用材林培育所需的优良无性系、造林密度等关键技术开展研究,结果表明:中潜、中汉、南抗无性系列之间差异显著;试验设计造林密度为3 m×3 m、2.5 m×4.5 m和3 m×4 m,6年生时,2.5 m×4.5 m蓄积量最高,达139.9 m3/hm2,投入产出比为1∶4.5。

The research focused on some key technologies such as good clones needed in nurturing industrial timber for short-period fiberboard of poplar,reforestation density,the results showed that： the differences between poplar clones ＂Zhonghan＂,＂Zhongqian＂＂,Southern anti-family＂were significant,the planting density of experimental design were 3 m×3 m,2.5 m×4.5 m and 3 m×4 m,the volume at 2.5 m×4.5 m when 6 years old was the highest,reaching 139.9 m3/hm2,the ratio of input-output was 1∶4.5.